Diseases that cause fever in summer (normal body temperature of piglets is 39.3℃, that of medium pigs is 39℃, and that of big pigs is 38.8℃), such as wind-heat cold, eperythrozoonosis and toxoplasmosis. ~ Take wind-heat cold and toxoplasmosis as examples ~
First, pigs catch a cold due to wind and heat.
1. Symptoms of wind-heat cold? Pigs with cold limbs, cough, elevated body temperature, loss of appetite, listlessness and dull appearance have a high cure rate and few deaths.
2. Wind-heat cold therapy? ：
Bupleurum injection 5- 10 ml, penicillin 8-2.4 million units used to control secondary infection, 1-2 times a day, 1 time for 2 days.
30% analgin 3-5ml or compound aminopyrine 5- 10ml, 1 time, 2 days a day.
Second, swine toxoplasmosis.
1. Symptoms of toxoplasmosis in pigs? The pig's body temperature increased by 465,438+0-42℃, and the high temperature lasted for several days, and then it was abandoned, and the stool was dry and spherical. Dogs have difficulty breathing in sitting position or abdominal breathing with cough, vomiting, runny nose or mucus-like nose. There are purple spots or small bleeding spots on the ears, especially on the tip of the ear, lower limbs, inner thighs and abdomen, and I can't afford to lie down in the later stage.
2. The treatment of swine toxoplasmosis? ：
Sulfamethoxazole sodium powder 300g/ton, premix1000g/ton for 3-5 days; Intramuscular injection of sulfamonomethoxine sodium 1 0 ml/50 body weight,1time/day for 3-5 days. (Note: For the first time, double the amount indicated and normally recommend the above recommended amount. )
To sum up, it is a common problem for pigs to have a fever and not eat. It is necessary to judge and treat in time, control secondary infection, strengthen feeding nutrition and adequate drinking water supply (adding glucose). Let pigs recover as soon as possible and stay away from diseases.
1, acute swine fever
Acute, febrile and septic infectious diseases of pigs caused by classical swine fever virus.
The sick pig suddenly developed a high fever (4 1.0~42.5℃), showing large and dense bleeding spots on mucosa and skin, and the finger pressure did not subside, and small bleeding spots appeared on ears, limbs, abdomen and vulva skin. A large number of purulent secretions in both eyes even cause eyelid adhesion, prepuce urine, first constipation and second diarrhea. Course of disease 1~3 days, high morbidity and mortality.
2. Porcine dermatitis nephrotic syndrome
The disease is an infectious disease caused by circovirus type, which mostly occurs in piglets of 12 ~ 14 weeks old, mainly with red papules on the skin.
The sick pigs showed anorexia, lethargy, pallor, fever, conjunctivitis, dyspnea, diarrhea and emaciation. Irregular reddish-purple spots and papules appear on the skin, which first appear in the hindquarters, limbs and abdomen of pigs, and then spread to the chest, back and ears.
Round or irregular reddish-purple spots and papules can be seen in the eyes, which combine in perineum and limbs to form irregular patches. With the course of the disease, the lesion area ruptured and scabbed black.
3. Eperythrozoonosis of pigs
Hematological diseases caused by Eperythrozoon parasitizing pig red blood cells or plasma are mainly transmitted by mosquitoes and blood-sucking arthropods, and most of them occur in summer and autumn.
At the beginning of the disease, some pigs lost their appetite and were listless.
After 3 days, the appetite disappeared, the body temperature began to rise, and stayed at 4 1~42℃, and serous secretions flowed out of the nasal cavity, resulting in conjunctival pallor anemia. Some pigs breathe faster, their feces are spherical, dry and hard with mucus and blood, their urine is small and yellow, and their water consumption is obviously reduced.
Five days later, the ears of sick pigs changed from red to purple, some sick pigs appeared paralysis in their hind legs, red spots appeared on their buttocks and back, and purulent secretions sometimes flowed out of their nasal cavities. Soon the red spots on all parts of the body became a whole, and the whole pig was red.
With the aggravation of the disease, the urine turns from light yellow to dark yellow, red or even brown in severe cases, the blood is thin, the sick pig is getting thinner and thinner, the mucosa is yellow, the eyes are black, blue-purple spots or plaques appear on the inside of ears and limbs, and the body temperature drops to about 40℃. When the temperature drops below 39℃, pigs will die frequently.